Looking for optimus cyber planet key

Hi!
As my niece came the other day, she played with my galaxy force/cybertron optimus prime while i was out and the little devil managed to break the figure's planet key (the one which look like the matrix of leadership in blue plastic with the red autobot logo on it).
I'm desperate to find another one, if you can sell it, contact me as fast as you can!

PS: I'll pay via paypal only, but will pay a good price!

EDIT: I just noticed she also broke one of its missiles, If anyone has one, please contact me!